Vulcanizing apparatus.



H. H FROST. VULGANIZING APPARATUS. APPLI-CATON FILED DBO. 29, 1904.

4 3 SHEETS-SHEET 1.

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Hor/rey.

PATENTED MAR. 5, 1907.

No. 846,408. RATRNTRD MAR. 5, 1,907.

H. R. FROST. NIZING APPARATUS.

VULGA APPLICATION FILED DE a SHEETS-SHEET 2.

PATENI'ED MAR. 5, 1907.

H. H. FROST. VULCANIZING APPARATUS. APPLICATION FILED D -to repair these thoroughly, or otherwise the onrrnn rrielnufr entren..

HENRY HARVEY FROST, OF LNDOW, ENGLAND, ASSiGNOR T() HARVEY FRST t CUMPNY, LlMlTED, UF LONDGN, ENGLAND.

VULGANEZING.

Application filed December 29 Be it known that l, HENRY HARVEY Fnos'r, n subject of the King of Englani'l, and residing at London, England, have invented eertztin new and useful linprmfeinents'in or Relating to Yuleanizng Apperutu's, of which `the following is a. spr eiiieution.

'llhisinvention relates to Vuleunizing upperatus applicable in various ways, hut haring particular reierenee to apparatus for repairing or re-oovering pneunietie-tim covers or. for jointingr the ends of pnoumutie tires for` motor-Vehieles' und the like. Such pneumetio-tire oevers 'frequently heeoine punctured or worin out in ports, audit is necessary cover will loe eeless- -For replacing the part Worn out or for filling up the. puncture n oomposition is employed whioli is plnetie in its nature and een readily be pluoed in position, it being, however, neeessury to Vnlennize this ooinpositioi'i hy means of heat in order that it muy remain in position and stand the nee es snry weer, the heating or ville-.mining euus ing the patch or insertion to actually heeon'xe port ot the cover.

My invention han for its objc-et the provision of means for subjecting ooth sides ofthe tire-cover to heet und 'for implying this lient equally and evenly over the part to he trented, so as to `assure that' the pntoh will he thor ouglily treated.

illyinventionnlsoincludes menne forapplyv ing the heut in Such n, manner ns to ui'oid overeooling et my part.

My iiwention iurtln-r inohides they previ sion of two members, hol-h o'lwhieh ure heu-ted, one member heine shapedmid ndnpted to treat the inner surface ot the tire-row r und the other heiner shaped und, adopted to trent the outer surinoe thereof.

My invention alsoiuoludes meunsforindependently regulating' the heel oi the memher for treating the inner surluee oi the eovrr.

l Will now describe the deviee. mnhodyine my invention illustrated in the accompanyingl drawings und will theren'ter point out my invention in eluims.

Figure l shows u. preferred l'orin of' the,I two vuleanizing members consisting ol" the holl low in andrel A und im eppure-tus for supphjl ing heat to the mundrel und huving n Channel or mold Whioh eoin-titun s-the seeond vulennl izing nieinloer proper. Fig. 2 is u section on Specioaton of Letters Patent.

,1904. Serial No, 238.7%.

l tion muy he vnlrnnized on APPARATUs.

atented Merel-1 5, 190'?.

the line Z 2 oi" Fig. 1,. Fig. 3 shows: e modi jlied construe-tion of flexible lient-eenduetor to the. niundrel.

Referring more particularly to Figs. i and 2, A. is the hollow mandrel, which, us shown, is preferably eireulur in cross-seething out it muy he otherw'se 'torino/d so long :is the, portion intended to come. in @ontsmet with the interior of the tire corresponds to the lie-rin the `tire-cover is intended to take when iniiuted. The mainlrel muy he of unyeonvenientlength and curved so to beur against the interior oi the tirefoover. The vi'nundrel in uddiu tion to heinp,` employed 'for vuleunizing pu tolles or insertions in the @over muy also be employed in eonjunetioijx with e, second inemher B lfor vulea-nizing the tire in sectionsL und ohvimisly there will ho n tendency to over oook or underemli the portions oi" the tire ut the end of the successive sections on neoount of the parts oyerlnpjng 'the ends" A ofthe mandrel :1re tapered, so that the amount of heut transmitted to the tire will diminish toward the outer `ends of the nmndrei, or the opening in the interior oi' the mandrel may he, tapered toward the. end, or other mean-s profvided whereby the heet will he grm'lnuted, as above stated. Thus the iunetion of the tnpered ends A of' the mandrel A is to efl'eet n @raduni diminution of eppliezition oi heat lfrom the highly-hearted pnrt oit the article to the point not ut all heated.

A prei-erred forni of the ser-,ond yulcanizing member consists of a steam-generator B', having u basin-like shape, und upon this is huilt n member l?, which vforms purl' ol the u111--gene1ntor. rl`he two purts B und E2 ure thine-ed nt b b :1nd seeured together by bolts The upwardly-extending member B2 hns e deep eentrul recess or cavity B3, in whieh the lire to he` treated is disposed, the curity being` open :it hoth ends. -rThe lower side olf the ehnnnel with which the lire in in eontuet is shnped to oon'f'orrnlo they exterior ol" the tire-oever in its inflated ltorni or the 'form which it assumes on the wheel-rh" The walls of the part B2 nre hollow, ne Shen .i in Fig. 2, und heine' in direct ommnuniention with the water-space B4 of the generator the steuin generated passes into the Space B5 hetween the inner und outer walls 'if' the part B2. .'Vhen th e rmmdrel A is employed with this seeond 'inenlhr-r B, so that :i patch or inseeboth sides sirnulv drei'through a valve-controlled opening B,

otherwise secured The free end of the lever generator, and this .conduit .B7 and #mandrel lated.

rv(see Fig. 1,) leadingto the steam-'space ofthe steam is led by a flexible conduit A2, controlled by a valve A3. valve A3 the amount of steam entering the irom'the generator may be regu-- At its opposite end the mandrel. A is provided with a conduit It, controlled hy a valve A5, by which air or Water of condensation can be blown out from. the mandrel by the entering steam when the apparatus is started.

The' patch y upon. the by tape, or the clamping apparatus C .may be employed for this purpose. This apparatus comprises a screw C', havin a platelf-l2 curved to correspond to the shape of the mandrel. The screw passes through a screw-threaded block G3, one end of which is provided with a point C4, arranged to bear against one of the side walls ol' the channel, and at the other end is provided with an adjustable screw C5, having a point against the opposite wall of the channel, so as to hold the apparatus stationary. paratus may also be employed to supp pressure when a patch is being vulcanized on the tire Without removing it from' the Wheel. in this case mandrel is dis ensed, with and the tire, together'with the w. ieel-riin, introduced into the channel of the main Vulcanizing member B. A clamp (l is vthen placed in position and the screw C adjusted so that theplate C2 upon the rim ofthe Wheel. The pressure may, however, be dispensed with and the patch vulcanized, as above described, the wheel being held in position in any convenient manner.

' he upper faces B8 of the side walls of the main vulcanizing member B are preferably Hat,so that articles may be vulcanized on the fiat or patches attached to small tires.- Preferably a clamp is employed with this operation, and this consists conveniently of a leverD, hinged or pivoted at d lto a stationary support D, which maybe bolted or to the side Walls of the vrr'iember B, or it may be otherwise supported. D has ah opening the through which passes a screw-threaded end on which lits@l nut D3 in such a manner that dy one Way or the other the pressure of the lever Dupon the article can be regulated. -V The -rod D? may be detachably secured to the ap-l paratus.

A ofvulcanzing it in place. "By rotatingthe handle a of the preferably securechin place `terior of the casing B from This aprod D2] having a turning the nut 4.in

-BB-is a tube inserted ln'to the steam-heatfgdV cavity between the outer and inner Walls of L the part B2 and-'open at its upper end, which is level with the face B8 of the channel-Walls, and this tube isof such a nature thatfit can receive the valve of the tire for the purpose Conveniently the generator is sup orted pn a casing F, having at itsupper en openings F and similar openings F2, which are situated at intervals around its periphery, At the lower end of the'casing there is a gas jet or burner G, the heat from the burner im; pinging on the bottom B of the generator and the products of combustion passing away by the openings F and F2. 'lne generator, however, may be heated by an oilburner o1' an electric orother furnace or by any other appropriate melius. In place of applying a. heater direct to the generator steam, hot air, or the like may be supplied to the ina generator or other source situatedl'at'a distance from the apparatus, th'e heat being conveyed by suitable conduits. When the heat is supplied from a source distant from the apparatus, the heat to the mandrel A or the member E may be supplied by a separate conduit, or the heat for these parts maybe led from a conduit communicating with the casingB.

H is a pressure-gage, and J a safety-valve.

The generator is filled with Water up to the level shown in Fig. 2, and overlillin f of the generator is prevented by a cock (See Fig. l.)

In place of a flexible conduit, as shown in Fig, 1, the steam maybe conveyed from the interior of the part B2 by a jointed conduit, as shown in Fig. 3. This conduit consists of three sections B11, of metal tubing, connected at one end to a valve or cock B12 on the part B2 and at the other end to the mandrel A, universal or bell-and-socket joints B1 being introduced at the parts shown.

Other attachments may be provided in accordance with the nature of the articles to be vulcanized, and two o r more channels B3 may be provided, -so thatl tires of various diameters can be treated in the same apparal tus, and it is notv intended to limit the invention 'to the details olv.A construction above given, as these may be iiaried in accordance with requirements. q y

What I claim as my. invention, and desire 'tosecurelby Letters Patent, is- 1. In a vulcanizin a paratus, the-combination of an outer mo d fihi' an article of curvilinear form, an inner rigid'mandrel -liaving a curvilinear axis and forme .toflrnli'ke firm contact wi th the inner surface offjtliearticle,

` and. means for heating' the outer mold and ,the inner inlidrol.

l article, of an. inner hollow rigid mandrel havhase eoininunioatine; with the spar-,e lretween mandrel lor the ing a heating medium to' the interior olA the lor heating the mol d.

@lieen4 Y 2. ln a Vulcanizing apparatus for a hollowy artiole of curvilinear form, the combination with an outer mold having Walle forming jacket and. adapted. for lirm oontaet with the ing a 'curvilinear axis and adapte'dlor l'irin Contact with the inner surface of the hollow article,r means :for supplying a heating niedium to the jacket of' the outer molthand means lor supplying a heating medium to the interior or' the mandrel.

` 3. In a'vuleanizing apparatiis for hollow artieles ol curvilinear forni, the eomlzination el a hollow rigid'mandrel having a eurvi. linear axis and adapted for irin engagement with the ...ide ol' the article 'to lie treated, ,and rneanelor supplyingrheat to the interior .olf the niz'mdrel.

, fi. 'ln a vnleanizing apparatus the comitination with a eliannel-mold open at tolli ends, of' jaelreted walls for the mold, a hollow valife-tolie-receiving rneinher inserted into the space hetween the walls7 a (lished the WalleI and heating means disposed leneath thewhaao. l

5. ln an apparatus lor Vuleanizing tireeov'ero, the ooinlination ol: a hollow rigid '3e-oever, means for supply n'ia'ndrel mold. for the tire-rover and moans G, ln a vul 'Lining apparatus the ooinliination with a (lished rnenilor ef-mslitutingr a eteani-generator ol' a inold-ehannr-il onen at liotli endo and havingy hollow walls eorni'nunieating with the steani-generating a flat riora tion at the upper end ol the walls. a hollow tubular vali/otolize-reeoiv'ing inenilier olosed at one end and let into the hollow hetween the eliannel-walls and heating' means ilieposei lieneath the stealn-renerator suhatanti ally' afa4 deeori l ed.

7. in a voleanizing apparat 'is the Conil-3inatilini with a steamgenerator olf a inoldchannel haring hollow will eoinmunieifi'ringr witl'il the generator, ahollow mandrel letween whieh and the channel-mold the arti-` ele 'to le treated is placed, menne lor conveying Steam from the generator to the interior of 'the mandrel and means lor Supplying heat te the generator. 1

8. ln a vulcaniaing apparatus the eomlji nation with a steanvgenerator ol a moldohannel having hollow' Walle eemmunieat-ing` with the eenerator, a hollow inandrellliavingr tapered en and means lor supplyingfheat 'to thegenerator. v.

9. ln a 'vuleanizinir apparatus thel eornliiiia'tion with a'etearn-generaton o'la n1oldchannel having hollow walls eongnnunieathig niththe generator, a hollow in mrd rel, ta peilel ends to the mandrel, arlexi'ble eonduit lievalve on the Conduit and Ineens@ 'lor Snpnly-A ing heat to the generator.

l l. ln a Wilrfvanizing apparatus the comlination with. a steam-generator of a moldel1annelhaving hollow walls communicating with the generator, a hollow mandrel, taperod ends to the mandrel, a ilexihle conduit letween' the generator and the mandrel, a Valve on the conduit, a lilow-oll' Coeli on the mandrel 4and means vFor supplying' heal lo the generator. l

l2. [n a vuleaniZing;I apparatus the eoinhination with. a (lished monitor constituting a Sleani-generator ol: a rnolrl-eliannel open at roth ende` and-havingr hollow walls` eoin1nunieating; with the steain-generator, a-'llat porlionv at tho upper ond ol the walls, a hollow iuliular ineniler closed at one end and let into the hollow space ifetween the channelwalle, a second hollow.` inonder rtetween which and the Channel-mold the artiole to he 'vulcanized is plaoe'd and heating; means dis posed l'oneath the Hearn-generator sulistanH tia-ll',T as deserihed.

nation with a (lished n'iernhor eonstituting a sleanbgenerator, ol' a -nioldwliannel open at Vboth eil and lowing hollow walls eonnnw niral ing' wil l1 the sleain-generator,4 a llat portion at the upper end ol' the walls, a hollow tul'iular member `ol'osed at one end and let into. ille hollow Spano between the channel- Walls, a second hollow. nienihor lielzween which. and the ohmmol-mold` the article to he vuloanif/.od isv plaeed, a .llexihlo valw'ef-rfonlrolled conduit hetwoon the steam-space of 'l lio generator and the rreeond hollow member, and healingi moans dinposed heineatli the stenln-grenerator suhslanl ially as described; l. lo, a vuleanizinn apparatus the oonihi- .nation with a (lished. lnomher eonslitutiney a ntearwgeie'ratol, o'l a mold-channel open at both ende and havin;i hollow wall` commu ni 'ating' with the eleaxwgenerator, a [lat portion al the upper end ol' the walls, a hollow tuhula'r Vnienihor closed,` at one end and let into the hollow space between the channelwalle, a hollow mandrel, tapered endo to the mandrel, a lloxilolo valmemvontvrrilled. conduit between the generator and the mandrel, a blow-oli' Coeli on the mandrel and heating means disposed heneath the steanvgonerator sulistantially as described. n

15. ln a vuleanizing apparatus the combination with a eliannelinold open atfooth ends and having hollow'walls ol el? generator consisting of a dislkshapeci",member stand for the generator, having openings in supportedin the stand, a fiat portion'at the znelfmold the article to be vulcanized is 'its walls, a burner beneath the generator and communicating' with the hollow walls,4 a

its walls, a burner beneath the generator and upper end of the hollow walls, ahollow cylinf drieal member closed at one end and inserted" in .the hollow walls, a secon'cthollow. vulcanizing member, between which and the chansupported in the stand, a fiat portion at `the upper end of the hollow walls, a hollow cylindrical member closed at one end and inserted in the hollow walls a hollow mandrel having tapering ends and constituting the second hollow vulcanizing member, between which and the channel-mold the article to be vulcanized is placed, a eXible conduit between vt-he steam-space of the generator' and the second member, al valve on the conduit, a

blow-off cock on the second iriember, Ianda clamp for pressing the article nto thevul- 17. In a vulcanizing apparatus, the combi;

"nation of an4 outer mold for an article of curvilinear form, an inner rigid mandrel havl ing a curvilinear axis and formed t0 make rm Contact with the inner surface of the article means f or heating the outer mold' and theinner mandrel, and means for independentlyregulating the heat of the mandrel.

18.` In a vulcanizing apparatus for-a hollow article of curvilinear form, the combination with an outer mold having walls for'r'ningY a iacket and adapted for firm contact with .the article, of an inner hollow rigid mandrel having a curvilinear axis and adapted for firm contactwith the inner surface of the hollow article, means for supplying lheat'to the jacket of the vouter mold, means for supplying heatto the interior of the mandrel, and means for independently regulating the .heat ot' the mandrel. I i

In testimony whereof I have signed my presence of name to this specification in the two subscribing witnesses.

H. HARVEY FROST.

. Witnesses:

PERGY G. GATTER, H. D. JAMESON. 

